Article ID Journal Published Year Pages File Type
5491852 Physica B: Condensed Matter 2017 10 Pages PDF
Abstract
We have obtained the temperature T0 of a phase transition in this model as a function of the frustration parameter J2 in the S=1/2 two-dimensional frustrated Heisenberg antiferromagnet in the square lattice considering second-neighbor interactions in the diagonal. We have employed the SU(2) Schwinger boson formalism to obtain the behavior of T0 vs. J2. We have considered the inter-chain coupling in the diagonal as antiferromagnetic, J2>0, and the nearest-neighbor coupling as antiferromagnetic J1>0. The critical temperature T0 is the temperature where the correlation length ξ(T0)→0.
Related Topics
Physical Sciences and Engineering Physics and Astronomy Condensed Matter Physics
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